I wanted to make this track almost as soon as I saw the "Batman versus Terminator" short by Mitchell Hammond. It was so good I got inspired to try & make a theme song for it combining the batman theme with the terminators.
I pretty much knew right away I wanted to use the Arkham City theme for the Batman bits, as it's the definitive theme as a it combines elements from every Batman soundtrack into one awesome vigilante theme, at least in my humble opinion (even has the nanananana part from the Adam West series). As for the Terminator theme, well, I used the percussion pattern, then went about trying to make a call & answer type thing with the 2 themes. I knew I wanted to intro the track with a really retro 80's sounding synth soundscape, then slowly add in the orchestral elements; I was super excited when I got the intro down. I had to do some tweaking to get the 2 themes to sit right, & I'll probably rework it a bit & do a final edit sometime soon, but I think it came out pretty damn good!